Thrashing machine



`Ham. 22 1924. 1,481,436

* E. F. RUSSELL ET AL THRASHING MACHINE Filled Aug. 28 1922 3Sheets-Sheet] m 5 .NA y N I N o N W v fn W 4 ai g iQ (f 1*.. 1* Li Qs) eW Jan.22,1924. 1,481,436-

E. F. RUSSELL ET AL.

THRASHING MAQHNE med Aug. asf 1922 s sheets-smet- 2 Jan. A22 192.4.

E. F. RUSSELL ET AL f 'I-HRASHING MACHINE Filed Aug. 28 1922 3Sheets-Sheet 3 fluor/n m4 o rammed aan. 22, i924.v

"' TTES EARL F. RUSSELL, OF BIRD CITY, KANSAS, AND RAYMOND B. LAMME, OFULYSSIESy NEBRASKA. y

THRASHING MACHINE.

Application filed August 28, 1922. Serial No. 584,771..

To @ZZ 'whom t may concern:

Be it known that we, EARL F. RUSSELL and RAYMOND B. LAMME, citizens ofthe United States, residing, respectively, at

Bird City and Ulysses, in the counties ot' Cheyenne and Butler andStates ot Kansas and Nebraska, have invented certain new and usefulImprovements in Thrashing Machines; and we do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appert-ains to make and usethe same. y y

Our invention relates to improvements in grain separators and moreparticularly to those designed primarily tor use in'conncc-k tion withthrashing machines, one object being to provide an open-,work wallagainst which the grain and straw are thrown by the thrashing mechanism,the straw 'being checked by this wall and carried from the thrashingchamber while some of the threshed grain passes through the wall and iscaught in a grain pan.

' The straw v discharged from the thrashing chamber carries quitev an.amount of grain and a Jfurther aim is to provide themain Separatingchamber of the machine with an open-Work inclined screen upon' whichthis grain-laden straw is discharged by an air blast. By this means, thegrain is forced from the straw while the latter is moved along thescreen lby the air blast producing effective operation before the strawis discharged onto the reciprocating straw rack.

Affurther aim is to provide for driving' a tan for producing the abovementioned air blast as well as astacking fan, from a single longitudinalshaft which is preferably driven by .an engine on the frame. of themachine.

Yet another vobject is to provide a simple and inexpensive, yet anefficient and desirable machine which, by the merey addition of a grainheader, may be readily converted into a combined harvesting andthrashing .machinel With the foregoing in view, the invention resides inthe novel subject matter hereinafter described and claimed, thedescription being supplemented by the accompanying drawings.

Figure l is a longitudinal sectional view of the improved thrashingmachine.

Figure 2 is an end view thereof, parts 55 being shown in section. y

Figure 3 is a transverse section taken on line 3 3 of Fig. l. l

Figure 4 is a plan view of a separating screen used on theimproved'thrashing ma- 60 chine. v Y fr Figure 5 is a side elevation otanother separating screen. n y

Figure 6 vis an edge view thereof.

Figure 7 is a transversesection taken on 65 n line 7 -7 of Fig. 5.

In the drawings above briefly described, f the numeral` l designates anappropriate wheel supported frame Aupon which is mounted a thrashingchamber 2, a main' 70 separating chamber 3, an engine il', and allworking parts driven from y this engine. The grain to be threshed islted in oneside` of the thrashing chamber 2, by an appropriate feeder 5including a pluralityof 75 kickers 6 which feed the unthreshed grain toband critters 7, in the construction here shown. It will beunderstood*howeverthat the band cutters are not necessary in allinstances and that the feeding means may be of any conventional ordesired type. We prefer however to use an over-shot cylinder 8 in thethrashing chamber 2 and to arrange the concave 9 which co-acts vwithsaid cylinder, in such a manner that the straw will be dischargedhorizontally asindicated by the arrows in Fig. l. A substantiallyvertical open-work wall 10 extends across the lower portion of thethrashing chamber 2, parallel with the axis ofthe cylinder 8 and 90leads to one edge of an adjustable opening l1 by means of which thechamber 2 communicates with the main `'thrashing chamber 3. The wall l0is by preference formed of a plurality of vertically spaced 'horizontal95 rods 10y secured at one end to ar suitabler post l2 while their otherends are free adjacent the'opening 1l, so as to interfere lin no mannerwith passage of straw through said opening. These `tree endsot the rodsare by preference oiset slightly from each otherso 'as to impart atransverse curvature to the wall 10 at its delivery end.

The grain laden straw is checked by the Wall 10 while some of the grainpasses 105 through said wall into the reciprocating grain pan 13, andthe straw caught by the wall is carried by a conveyor 14 from thechamber 2 through the opening 11 into a blower or 'lan casing 15 at oneend ot the separating kchamber The outlet 16 from this casing dischargesthe grain laden straw into the upper portion oi"4 the separating chamber3 in an inclined direction, a suitafble fan 17 being located in thecasing so that the straw and grain are discharged through the outlet 16with considerable air pressure. lThis pressure drives the grain andstraw downwardly upon an inclined screen 18 which is mounted in theupper portion of the chamber 3, being preferably 'termed by a pluralityof rods 19 free of connection to each other at their lower endsand allmounted on a common support 2O at theirupper ends. As the straw leavesthe outlet 1G of the casing 15 and is caught upon the'screen 18, itspreads out into a thin lilm or layer upon this screen, permitting thegrain to be driven by the air pressure through the screen so that itwill eventually be caught in the grain pan 13. in view of the fact thatthe screen 19 is inclined in substantially the same manner but to a lessextent than the direction taken by the straw and grain discharged fromthe outlet 16, the air pressure will serve to move the strawcontinuously along the screenand this straw will discharge onto asuitable reciprocating straw rack 21, by which it is i'ed to the inletopening 22 or' a pneumatic stacker casing 23, an inclined baille 211being preferably provided between the screen and casing beneath whichthe straw must travel. The stacker tan 25, the fau 17, and the thrashingcylinder 8 may all be driven by a common longitudinal shaft 26 havingsuitable universal joints 27 where necessary, and this shaft is drivenby the engine Llthrough the instrumentality of a suitable clutch 28. Allmoving parts of the machine may be driven by belts or the like operatedtrom the shaft 2G or otherwise driven from the engine 1, but as suchdetails are lett to mechanical skill in constructing the machine, theywill not be specifically described.

The numeral 29 designates a reciprocating shoe under the delivery end ofthe grain pan 18 and provided with a screen 30 onto which the grain andany chali which may remain therewith, are discharged. The grain passesthrough the screen and is intended to slide down the inclined bottom ofthe shoe 29 into a transverse worm conveyor 3l which leads beneath themachine to the usual grain elevator 32. As the grain fails 'from thescreen 30, it encounters a blast of air from a blower 33 and this blastcar- 'lowed ries any remaining chali and dust into a transverse wormconveyor 34e leading to a chall' elevator which preferably returns tothe thrashing chamber 2. Thus, if any grain remains with the chaff, itwill be again subjected to a separating operation. ln actual practice,excellent results have beenobtained from the general construction shownand described and we therefore prefer that this construction shall befollt is to be understood however' that within the scope of theinvention c as claimed, numerous minor changes may be made.

idle claim:

l. A thrashing machine comprising a chamber and means therein forthrashing grain from straw, a wall oit open-work form in said chamberthrough which the grain is thrown by the thrashing means and by whichthe straw is checked, receiving means for the grain, and means between'the thrashing means and wall for carrying the checked straw from thechamber.

2. A thrashing machine comprising a chamber and means therein forthrashing grain from straw, a vertical wall oi openworlr form in saidchamber through which the grain is thrown by the thrashing means and bywhich the straw is checked, receiving means for the grain, and a drivenconveyorl between the wall and thrashing means on which the strawchecked by said wall is caught to be carried from the chamber.

3. A thrashing machine comprising a chamber, an overshot cylinder and aconcave in said chamber', a vertical wall Voi openworlr form in saidchamber positioned substantially parallel with the cylinder axis inthepath oit' the threshed grain. and straw discharged by the cylinder andconcave, whereby to check the straw while permitting the grain to pass,means for receiving the grain, and means between the thrashing means andwall l'or carrying the checked straw from the chamber.

1. A thrashing machine comprising a grain thrashing and initialseparating chmber, a main separating chamber, a straw and grain passage.from said initial to said main separating chamber, a fan in saidpassage, a straw outlet from said main separating chamber, a fan in saidoutlet, and a common driving shaft carrying both fans.

ln testimony whereof we have hereunto affixed our signatures.

EARL r. RUssnLL. RAYMOND n LAMME.

lOIS

